The rocks you put into an aquarium are not only decorative, but they provide housing for the fish and other animals in the tank, shelter against agression that may occur from other tankmates, and are an important biological filtration source. Here are some helpful tips on what you can do to arrange either non-living or live rocks in a saltwater system for maximum efficiency when you are aquascaping or arranging rocks in your aquarium.
Tip 1: Consider raising the rocks off the bottom of the tank. By doing this before the substrate is added to the tank, the rocks will be somewhat suspended above the substrate itself. The benefits here are that it allows for better circulation around the rocks, and when tank janitors and sand sifters are added to the aquarium, they can more easily access the areas at the base of the rocks and underneath them to help prevent detritus or organic matter from building up.
Tip 2: Position individual rocks or rock formations somewhat away from the outside areas of the tank walls. This will allow for better water circulation around the rocks, as well as give fish, motile crustaceans and invertebrates room to get by them.
Tip 3: Stack the rocks somewhat loosely to allow for good water circulation around the structure, as well as some though it, but not so loose that a formation is unsafe where rocks might easily topple off.
Tip 4: Arrange the rocks in a way to create little nooks and crannies that fish in particular can go into, and even some holes they can swim through.
Tip 5: By NOT stacking the rocks to tightly, it is much easier for you to remove detritus that collects around the base of the rocks and between them. This can be done by means of either siphoning, or blowing it out using a water flow source. A simple turkey baster works well for this task. When various crustacean and invertebrate tank janitors are added to the aquarium, they can move about and crawl into small spaces to help keep organic matter cleaned up as well.
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